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浏览/检索结果: 共10条，第1-10条 帮助

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Stability research of fore-Telescope system with mechanical passive athermalization design 会议论文  OAI收割
Virtual, Online, China, 2022-12-18
作者:  Sun, Jian;  Wang, Wei;  Hu, Bing-Liang;  Li, Si-Yuan;  Zou, Chun-Bo
  |  收藏  |  浏览/下载：63/0  |  提交时间：2023/03/13
Thermal Stability Optimization of the Luojia 1-01 Nighttime Light Remote-Sensing Camera's Principal Distance 期刊论文  OAI收割
Sensors, 2019, 卷号: 19, 期号: 5, 页码: 12
作者:  K.Zhang;  X.Zhong;  G.Zhang;  D.R.Li;  Z.Q.Su
  |  收藏  |  浏览/下载：66/0  |  提交时间：2020/08/24
Thermal Stability Optimization of the Luojia 1-01 Nighttime Light Remote-Sensing Camera's Principal Distance 期刊论文  OAI收割
Sensors, 2019, 卷号: 19, 期号: 5, 页码: 12
作者:  K.Zhang;  X.Zhong;  G.Zhang;  D.R.Li;  Z.Q.Su
  |  收藏  |  浏览/下载：60/0  |  提交时间：2020/08/24
A novel passive micromixer with modified asymmetric lateral wall structures 期刊论文  OAI收割
Asia-Pacific Journal of Chemical Engineering, 2018, 卷号: 13, 期号: 3, 页码: 11
作者:  Wang, H. L.;  Shi, L. Y.;  Zhou, T.;  Xu, C.;  Deng, Y. B.
  |  收藏  |  浏览/下载：30/0  |  提交时间：2019/09/17
Topology Optimization of Passive Micromixers Based on Lagrangian Mapping Method 期刊论文  OAI收割
Micromachines, 2018, 卷号: 9, 期号: 3, 页码: 15
作者:  Guo, Y. C.
  |  收藏  |  浏览/下载：25/0  |  提交时间：2019/09/17
Parameter optimization of passive dynamic walking biped with knees (EI CONFERENCE) 会议论文  OAI收割
2012 2nd International Conference on Materials Science and Information Technology, MSIT 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaan, China
作者:  Zhang P.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
A method to find the optimized parameter values of passive dynamic walking biped is presented. The effects of biped physical parameters on the stability property of passive gaits are studied by simulation experiments. The chosen parameters include the mass distribution  length of leg and slope angle. The stability property of passive walking limit cycles is used as criterion of optimization calculation  including the orbital stability described by eigen-values of linearized Poincare map and the global property described by size of attraction region. The simulation results show how the stability of limit cycle varies when physical parameters of the passive biped change. The work is useful to explore the inherent property of passive dynamic walking and can be used as an important instruction in the mechanical design of biped robots based on principle of passive dynamic walking. (2012) Trans Tech Publications  Switzerland.  
Thermal difference analysis and athermalization design of infrared optical system (EI CONFERENCE) 会议论文  OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：45/0  |  提交时间：2013/03/25
When infrared optical system works in a large temperature range  the thermal effect of optical lens and optical tube will produce image plane shift and lead to imaging quality deterioration. In order to eliminate the thermal aberration  the athermalization design principles of infrared optical system were introduced  and some commonly used methods of thermal difference compensation were described. Proceeding from single lens  the thermal difference caused by temperature changing was analyzed  and the relationship between temperature and focus shift was obtained. Considering optical tube thermal expansion  a set of equations to estimate the thermal difference of lens group was given. Finally  an infrared optical imaging system that can work under the temperature range of -40C to 60C was design according to athermal technique  in which a new mechanical passive temperature compensation was proposed. Through simulation  the athermalization design could make imaging plane shift the smallest. The simulation results coincided with the theoretical formula  and the design had reference value in engineering. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Susceptibility of minor alloying to corrosion behavior in yttrium-containing bulk amorphous steel 期刊论文  OAI收割
Intermetallics, 2008, 卷号: 16, 期号: 8, 页码: 1036-1039
Z. M. Wang; J. Zhang; X. C. Chang; W. L. Hou; J. Q. Wang
收藏  |  浏览/下载：33/0  |  提交时间：2012/04/13
Nonlinear coupling between thermal mass and natural ventilation in buildings 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2003, 卷号: 46, 期号: 7, 页码: 1251-1264
作者:  Yam, J;  Li, YG;  Zheng, ZH
  |  收藏  |  浏览/下载：21/0  |  提交时间：2018/07/30
Theoretical investigation on quantum well lasers with extremely low vertical beam divergence and low threshold current 期刊论文  OAI收割
journal of applied physics, 1998, 卷号: 83, 期号: 1, 页码: 8-14
Yang GW; Xu JY; Xu ZT; Zhang JM; Chen LH; Wang QM
收藏  |  浏览/下载：47/0  |  提交时间：2010/08/12